Home / 209,588,850.07-289,233,751.32-120,273,682.68

Finding the Fourth Proportional to 209,588,850.07, 289,233,751.32 and 120,273,682.68

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Solution

The fourth proportional to 209,588,850.07, 289,233,751.32 and 120,273,682.68 is: 165,978,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,588,850.07 : 289,233,751.32 = 120,273,682.68 : x
  2. Step 2: Convert to fraction form
    209,588,850.07/289,233,751.32 = 120,273,682.68/x
  3. Step 3: Cross multiply
    209,588,850.07x = 289,233,751.32 × 120,273,682.68
  4. Step 4: Simplify right side
    209,588,850.07x = 34,787,208,426,607,712
  5. Step 5: Solve for x
    x = 34,787,208,426,607,712/209,588,850.07
  6. Step 6: Final answer
    x = 165,978,335.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.